PiPnpRtlGetFilteredDeviceList

NTSTATUS __stdcall PiPnpRtlGetFilteredDeviceList(_CM_ACTION_INFORMATION *CmObjectActionInfo){
  _CM_ACTION_INFORMATION v1; 
  VOID **PoolWithTag; 
  const WCHAR *v4; 
  bool v5; 
  char v6; 
  HPNPCTX *v7; 
  int inited; 
  WCHAR *v11; 
  HPNPCTX *v12; 
  char v13; 
  NTSTATUS CmObjectListFromCache; 
  PVOID v15; 
  UINT32 v16; 
  HPNPCTX *v17; 
  char v18; 
  _CM_ACTION_INFORMATION v19; 
  WORD *v20; 
  int v21; 
  WORD *v22; 
  HPNPCTX *v23; 
  char v24; 
  size_t *pcchRemaining; 
  size_t *pcchRemaininga; 
  const WCHAR *dwFlags; 
  UINT64 dwFlagsa; 
  UINT64 dwFlagsb; 
  UINT64 dwFlagsc; 
  VOID *v31; 
  __int64 v32; 
  VOID *v33; 
  _UNICODE_STRING DestinationString; 
  INT64 v35[2]; 
  __int128 v36; 
  int MatchCallbackRoutine[2]; 
  char v38; 
  int v39; 
  __int16 v40; 
  char v41; 
  PVOID P; 
  __int64 v43; 
  __int64 v44; 
  __int64 v45; 
  UINT64 v46; 
  WCHAR *ppszDestEnd; 

  v1 = CmObjectActionInfo[6];
  v39 = 0;
  v40 = 0;
  v41 = 0;
  PoolWithTag = 0i64;
  HIDWORD(v43) = 0;
  ppszDestEnd = 0i64;
  v46 = 0i64;
  *(_OWORD *)v35 = 0i64;
  v36 = 0i64;
  DestinationString = 0i64;
  if( (v1 & 0x7C) != 0 )
  {
    inited = -1073741802;
LABEL_30:
    if( PoolWithTag )
    {
      v16 = 1198550608;
      v15 = PoolWithTag;
      goto LABEL_15;
    }
  }
  else
  {
    if( (v1 & 1) != 0 )
    {
      v20 = (WORD *)*((_QWORD *)CmObjectActionInfo + 2);
      if( v20 )
      {
        v21 = 0;
        while( *v20 )
        {
          if( *v20 == 92 )
            break;
          if( (unsigned int)++v21 > 2 )
            break;
          v22 = wcschr(v20, 92);
          if( v22 )
          {
            v20 = v22 + 1;
            if( v20 )
              continue;
          }
          PoolWithTag = ExAllocatePoolWithTag(1ui64, 0x190ui64, 1198550608i64);
          if( !PoolWithTag )
            return -1073741670;
          LODWORD(dwFlags) = 2048;
          inited = RtlStringCchCopyExW(
                     (WCHAR *)PoolWithTag,
                     0xC8ui64,
                     *((WCHAR **)CmObjectActionInfo + 2),
                     &ppszDestEnd,
                     &v46,
                     (UINT64)dwFlags);
          if( inited >= 0 )
          {
            if( v46 < 2 )
            {
              inited = -1073741811;
            }
            else
            {
              *(_DWORD *)ppszDestEnd = 92;
              inited = RtlInitUnicodeStringEx(&DestinationString, (WCHAR *)PoolWithTag);
              if( inited >= 0 )
              {
                v23 = (HPNPCTX *)*((_QWORD *)CmObjectActionInfo + 6);
                v35[0] = (INT64)&DestinationString;
                v24 = BYTE1(CmObjectActionInfo[6]) & 1;
                *(_DWORD *)((char *)&v35[1] + 1) = 0;
                LOBYTE(v35[1]) = v24;
                v36 = *((_OWORD *)CmObjectActionInfo + 2);
                dwFlagsc = *((_QWORD *)CmObjectActionInfo + 8);
                LODWORD(pcchRemaininga) = CmObjectActionInfo[14];
                *(_WORD *)((char *)&v35[1] + 5) = 0;
                HIBYTE(v35[1]) = 0;
                inited = PiDmGetCmObjectListFromCache(
                           CM_OBJECT_TYPE_DEVICE,
                           (UINT8)PiPnpRtlEnumeratorFilterCallback,
                           v35,
                           v23,
                           (const WCHAR *)pcchRemaininga,
                           (_CM_OBJECT_TYPE)dwFlagsc,
                           v31,
                           v33,
                           *(WCHAR **)&DestinationString.Length,
                           (UINT64)DestinationString.Buffer,
                           (UINT64 *)&DestinationString.Length);
              }
            }
          }
          goto LABEL_30;
        }
      }
      return -1073741811;
    }
    if( (v1 & 2) == 0 )
    {
      if( (v1 & 0x80u) == 0 )
      {
        v17 = (HPNPCTX *)*((_QWORD *)CmObjectActionInfo + 6);
        v5 = (v1 & 0x100) != 0;
        *(_DWORD *)((char *)&v35[1] + 1) = 0;
        v18 = v35[1];
        if( v5 )
          v18 = 1;
        *(_WORD *)((char *)&v35[1] + 5) = 0;
        LOBYTE(v35[1]) = v18;
        v36 = *((_OWORD *)CmObjectActionInfo + 2);
        dwFlagsb = *((_QWORD *)CmObjectActionInfo + 8);
        v19 = CmObjectActionInfo[14];
        HIBYTE(v35[1]) = 0;
        LODWORD(pcchRemaining) = v19;
        return PiDmGetCmObjectListFromCache(
                 CM_OBJECT_TYPE_DEVICE,
                 (UINT8)PiPnpRtlEnumeratorFilterCallback,
                 v35,
                 v17,
                 (const WCHAR *)pcchRemaining,
                 (_CM_OBJECT_TYPE)dwFlagsb,
                 v31,
                 v33,
                 *(WCHAR **)&DestinationString.Length,
                 (UINT64)DestinationString.Buffer,
                 (UINT64 *)v35[0]);
      }
      v4 = (const WCHAR *)*((_QWORD *)CmObjectActionInfo + 2);
      if( v4 )
      {
        v5 = (v1 & 0x100) != 0;
        *(_DWORD *)((char *)&v35[1] + 1) = 0;
        v6 = v35[1];
        if( v5 )
          v6 = 1;
        *(_WORD *)((char *)&v35[1] + 5) = 0;
        LOBYTE(v35[1]) = v6;
        v36 = *((_OWORD *)CmObjectActionInfo + 2);
        v32 = *((_QWORD *)CmObjectActionInfo + 8);
        LODWORD(dwFlags) = CmObjectActionInfo[14];
        v7 = (HPNPCTX *)*((_QWORD *)CmObjectActionInfo + 6);
        HIBYTE(v35[1]) = 0;
        return PiDmGetCmObjectConstraintListFromCache(
                 PiDmListDevicesInInstallerClass|PiDmListInterfacesInDevice,
                 v4,
                 (UINT8)PiPnpRtlEnumeratorFilterCallback,
                 v35,
                 v7,
                 dwFlags,
                 (_CM_OBJECT_TYPE)v32,
                 v33,
                 *(VOID **)&DestinationString.Length,
                 DestinationString.Buffer,
                 v35[0],
                 (UINT64 *)v35[1]);
      }
      return -1073741811;
    }
    v11 = (WCHAR *)*((_QWORD *)CmObjectActionInfo + 2);
    if( !v11 )
      return -1073741811;
    inited = RtlInitUnicodeStringEx(&DestinationString, v11);
    if( inited >= 0 )
    {
      v12 = (HPNPCTX *)*((_QWORD *)CmObjectActionInfo + 6);
      *(_QWORD *)MatchCallbackRoutine = &DestinationString;
      v13 = BYTE1(CmObjectActionInfo[6]) & 1;
      v39 = 0;
      v38 = v13;
      v44 = *((_QWORD *)CmObjectActionInfo + 4);
      v45 = *((_QWORD *)CmObjectActionInfo + 5);
      dwFlagsa = *((_QWORD *)CmObjectActionInfo + 8);
      LODWORD(pcchRemaining) = CmObjectActionInfo[14];
      v40 = 0;
      v41 = 0;
      v43 = 0i64;
      P = 0i64;
      CmObjectListFromCache = PiDmGetCmObjectListFromCache(
                                CM_OBJECT_TYPE_DEVICE,
                                (UINT8)PiPnpRtlServiceFilterCallback,
                                (INT64 *)MatchCallbackRoutine,
                                v12,
                                (const WCHAR *)pcchRemaining,
                                (_CM_OBJECT_TYPE)dwFlagsa,
                                v31,
                                v33,
                                *(WCHAR **)&DestinationString.Length,
                                (UINT64)DestinationString.Buffer,
                                (UINT64 *)v35[0]);
      v15 = P;
      inited = CmObjectListFromCache;
      if( P )
      {
        v16 = 0;
LABEL_15:
        ExFreePoolWithTag(v15, v16);
      }
    }
  }
  return inited;
}

Referenced by: